string(289) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%A1%BA%E4%B8%B0%E5%BF%AB%E9%80%92%E8%B4%B918%E5%85%83%E4%B8%8E23%E5%85%83%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB => Failed to connect to 125.88.227.171 port 38062: Connection refused"
顺丰快递费18元与23元有什么区别
